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- เผยแพร่เมื่อ 29 มี.ค. 2023
- Diy Vanadium Redox flow battery - PART 1
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#battery #diy #vanadium #redox #flowbattery #3dprinting - วิทยาศาสตร์และเทคโนโลยี
Probably one of your most ambitious projects. Very marketable!!! Thank you
Thank you 😊
It might also be worth trying something like unglazed ceramic tile with some ion exchanger dispersed in it. Could probably make your own pretty easily with your lab as the materials seem relatively inexpensive compared to nafion.
Following with intense interest. Home scale storage system useing zinc bromide is my goal thanks for all you do
You might like to obtain some Dialysis membrane tubing for your separator, It's a lot cheaper than Nafion. I'm not sure how long it would last in an acid environment or how efficient it would be though, but I have used it before. I have some which is 25mm wide when flat so will give separators 50mm wide. Love your work.
Good idea. I will make a look at it
My best congrats, this is a great work, you're getting better and better.
Your setup it is lovely done, I would use it for educational purpose, a few ours use is more than enough than can be disassembled cleaned and reposed,.
This is clearly a scalable solution by any chance, but the concept is very nice.
Wish I had more thumbs to give this! Thank you sir, great craftsmanship.
Hehehe thank you
Incredible diy effort
It was so much beautiful. Thanks for your efforts.
Maybe if you want to test flow batteries, like vrfb with the concept of nanofluidic electrolyte to get an enhanced performance.
I am happy to contribute in research scale.
Maybe you can share a list of materials you used, where you bought them and maybe some 3d models of your printer.. would certainly help your channel i think..
are you moving forward with bipolar electrodes and 'flow' stacks? GREAT JOB!
Awesome Battery Video Cayrex. Thanks so much Brother! :)
very nice i like the size But whats the input and OUT put for POWER ? .
Beautiful work. If you could find a longer lasting membrane that wasn't so expensive you would be famous :)
I have used coffee filters with polyvinyl alcohol, (wood glue), let dry. Lasts a little longer. It works for zinc. Don't know about vanadium.
Pardon my ignorance, but what does the membrane act as for the system?
@notimportant8120 it won't work without it. It's an ionic conductor. It keeps anode and cathode from contacting each other electrically but let's ions pass.
have you looked at Daramic membranes? I believe that they degrade over time in Vanadium electrolytes, but wonder if they might be a cheap alternative in Zinc Bromide Redox flow batteries?
in multi cell stacks, how will you deal with shunt current?
Brilliant vid. Thanks. I'd love to see it scaled up.
Thank you
In the reactor plate, will the electrolyte flow within the plate from the two tube points? If so then how would the electrolyte come in contact with the carbon felt?
Could this technique be used to make a nickel iron redox flow battery or even a nicd flow battery?..
Great video
Where can I find the materials you used, specifically the conductive HDPE? Thanks for the video.
Nice design!
Hi! I have some questions about the flow channels you used! I don't see how the electrolyte comes in contact with the electrode ☹I loved what you did with the tanks! The 3D printed design is gorgeous and very functional!
The flow channels are the carbon felt. These are not flow channels as such but the positions of the inlet and outlet will encourage cross flow to some extent.
you could add flow directing channels to distribute the electrolyte more evenly. The Felt would just conform to the underlying surfa@@rogerwilson6367
Yes I inderstand
Do you have any advice as far as measuring equipment for someone looking to get started in home battery making and testing?
Yes for sure. Search for zketech, because they are cheap. ZKE EBC-A20 for measuring cycles (up to 1000 cycles), mWh, mAh, V,... but the problem is that the minimal currend load is 100mA, which means that you can not discharged the test cell with lower currend like for example 50mA, 30mA or so. Then you have a littel bit smaller and also more cheaper version which is zke ebd usb electronic load to measure the mAh and mWh but that one can not test the cycles,... but anyway with this one you can use much smaller discharge current load. Also some multimeter will be fine.
@@cayrex What is a typical current density for an electrode 1cm wide and 3cm long?
Great video. What material are the reactor plates made from?
Hi! Thanks. They are printed with resin
Embark on an exciting journey to create your own DIY Vanadium Redox Flow Battery in Part 1 of this instructional series! Learn how to harness the power of redox reactions and store energy efficiently.
Im interested in this project for my tiny house truck life where I have 2kw of solar and 9kw of lithium which is more than I need in summer and if i could store what I don't use in a bigger version of this for use in the worst 2 months of winter it would make my life much easier. This type of battery does'nt have self discharge so I could charge it in summer and use it in winter?
Yes correct,... you can charge in the summer and the use it in winter.
Hi.. can i buy this cell without the membrane and electrolyte? Just the battery part. I’m doing phd to study on the electrode of VRFB.
thanks for your good quality video :) I want to make some RFB for my graduation work, I want to change the bipolar plate for showing the difference between traditional bipolar plate design and the brand-new plate design. What should I change the part in your channel? Thx:)
Aha ok. You want to show the difference between traditional bipolar plate and the brand new plate design. But which brand new plate? Sorry, I'm a little confused 😁
@@cayrexHow can I change the flow channel?? I know that the flow channel is designed with carbon felt, which can not be printed...?
Be careful pushing on those glass tubes... if they break... the glass is going right into your hand!
Can the same setup be applied when building a zinc bromide flow battery?
Yes you can
great project but just one thing. Don't push down on glass tubes like that. If the glass shatters, you're in for a world of hurt. Always push/pull from the side.
Have you looked into organic batteries yet? How about a hybrid organic/inorganic cell? For instance what do you think about an anthraquinone based electrolyte working in conjunction with a Vanadium or iron multivalent cation instead of bromine anion?
Interesting! No sir, I never make a organic cell but I like the all organic battery concept. I read little about something like polyaniline/zinc battery systems, Organic carbonyl electrode materials,... some time ago and I like it because they can have good cycle rate.
@@cayrex polyaniline is what I have chosen to start experimenting with first as it seems like the easiest to make at home..
Interesting
Can you kindly provide me with the stl file file for the entire stack cell especially the reactor and the other outer plates
New Member!
Oh,.... thank you
Which material used for el3D printed white boxes
At least ABS like resin
You have 3D printer, time to print double peristaltic pump for such case when you need to pump two liquids with the same speed! You can do it ;)
Yes I working on peristaltic pumps for some other project. Maybe I will print some for that project. Still I am waiting for some motors and I will see what will come first,.... the motors or the pumps. 😄
@@cayrex i need to dissassembble some old printers i have on attick, great source of motors for any projects :P
@@ejkozan Yes. I was thinking to buy some old printer but then I somehow end up with oredering the parts, motors, pumps,... 🤔😄
@@cayrex If you have any office building near by, you can always try bindive, often you can get old electronics this way, because they throw it away
Do you any complete set for sale?
I will think about it. But maybe will be only the only housing like cell housing, electrolyte tanks, pipes, gaskets,... without membrane and electrolyte. Because small piece of membrane can be expensive and the electrolyte also uses concentrated sulfuric acid which I dont want to ship around. Or maybe I will come up with another flow battery experimenting kit which uses more friendly electrolytes like Mn-Cu, Mn-Zn, Fe-Fe,..... with modular cell housing which can you upgrade the cell to multi cell stack.
Drawing software name please?
Fusion 360
Where is the vanadium?
It will come in next part of the video
الفاناديوم
I'm a total novice at this sort of thing. Your comments in the video wandered around and the content overall was not presented in an easy-to-understand progression.
Oh sorry for that but, on youtube you have many really easy to understand videos about flow batteries, especially about vanadium redox flow batteries. And if you want to go deeper into that stuff,.... then you have also alot of research papers which are really interesting to read.
Your accent is so thick that trying to follow the materials selection is a serious pits, please fix the closed captions to reflect the correct material names.
Thick? I come from Slovenia,... here is everything thick 😂 Here I dont use more like resin printed plastic housing,... graphite foil or combination of copper and conductive HDPE as current collectors,.... graphitic carbon felt as reactor electrodes on both sides. Then is also the separator which need to be some ion exchange membrane (but here I use some baking paper,... which is good for short testing). Two tanks, two pumps, bunch of pipes and electrolyte which is V2O5 in H2SO4.
@@cayrex I thought baking paper is silicon based, isnt that a sealant?
@@noanyobiseniss7462 oh and yes, I forgot the neoprene rubber as gasket